tests: More work on error handling

2019-02-24 00:46:26 +01:00
parent 0c539d6e4e
commit 2d027f0771
14 changed files with 126 additions and 52 deletions
@@ -4,7 +4,31 @@
 #include "test_helpers.h"

 int main(void) {
-    printf("%d\n", rand());
+    // Uninitialized generator
+    int rand_uninit = rand();
+    printf("%d\n", rand_uninit);
+
+    // Testing the reproducibility of values
    srand(259);
-    printf("%d\n", rand());
+    int rand_seed259_1 = rand();
+    printf("%d\n", rand_seed259_1);
+
+    srand(259);
+    int rand_seed259_2 = rand();
+    printf("%d\n", rand_seed259_2);
+
+    if (rand_seed259_1 != rand_seed259_2) {
+        puts("rand() doesn't return reproducible values");
+        exit(EXIT_FAILURE);
+    }
+
+    // Seed value 1 should return the same values as the ininitialized generator
+    srand(1);
+    int rand_seed1 = rand();
+    printf("%d\n", rand_seed1);
+
+    if (rand_uninit != rand_seed1) {
+        puts("srand(1) doesn't work");
+        exit(EXIT_FAILURE);
+    }
 }